Issue 26, 2011

In situ growth in a PMMA film of oriented nanocrystals of the hybrid inorganic–organic acentric material [(E)-N,N-dimethylamino-N′-methylstilbazolium][Cu5I6]

Abstract

A poly(methyl methacrylate) (PMMA) composite film containing 4 wt% of the strongly second order NLO active ionic material [(E)-N,N-dimethylamino-N′-methylstilbazonium][Cu5I6] (1), obtained by spin coating of a CH3CN solution on a glass substrate, shows by a two step process (electric poling followed by controlled thermal annealing up to 140 °C) in situgrowth of nanocrystals, some of which are aligned, with a size of less than 400 nm as supported by TEM and GIXRD evidence. A long lasting second harmonic generation (SHG) is produced which is stable even after exposure to water vapour for one night.

Graphical abstract: In situ growth in a PMMA film of oriented nanocrystals of the hybrid inorganic–organic acentric material [(E)-N,N-dimethylamino-N′-methylstilbazolium][Cu5I6]

Article information

Article type
Paper
Submitted
05 Apr 2011
Accepted
04 May 2011
First published
02 Jun 2011

J. Mater. Chem., 2011,21, 9778-9783

In situ growth in a PMMA film of oriented nanocrystals of the hybrid inorganic–organic acentric material [(E)-N,N-dimethylamino-N′-methylstilbazolium][Cu5I6]

R. Macchi, E. Cariati, D. Marinotto, E. Tordin, R. Ugo, G. Santoro, M. C. Ubaldi, S. M. Pietralunga and G. Mattei, J. Mater. Chem., 2011, 21, 9778 DOI: 10.1039/C1JM11424G

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